Quote:
Originally Posted by scott free
what was out there before the big bang?
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We don't know. It doesn't seem reasonable to me to believe that nothing existed before that. Scientists used to believe that the universe cycles with a bang, expansion, slowing down to a contraction, a great crunch, and then the next big bang. But now we see that the expansion is not slowing down, it appears to be accelerating with no end in sight. So, the cycle theory doesn't seem to be valid.
So now, scientists are back to being thoroughly confused about what happened before the big bang.